名词
中文翻译：摇臂泵
同义词：
['rockingarm pump', 'rocking arm pumper例句：1. The rockingarm pump is used to pump water froma well.（摇臂泵用于从井中抽水。）2. The rocking arm pump wasdesigned to be easy to use and maintain.（摇臂泵设计为易于使用和维护。）']
例句：
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1. The rockingarm pump is used to pump water froma well.
摇臂泵用于从井中抽水。
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2. The rocking arm pump wasdesigned to be easy to use and maintain.
摇臂泵设计为易于使用和维护。
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3. Therocking arm pump is an essential toolfor farmers in the field.
摇臂泵是农民田间工作的重要工具。